lawler



(No Model.) J. J. LAWLER.

PLUMB BOB FOR GAS FITTINGS.

Patented N0v.'24, 1885'.

I Q l r, Washington, 0. c,

- lhvrrian Sra'rhs Parent rrrcn.

JAMES J. LAWLER, OF SCRANTON, PENNSYLVANIA.

PLUMB=EB FOR GAS FITTINGS.

SPECIFICATION forming part of Letters Patent NO. 3Sl,1%4=, dated November 24, 1885.

Application filed March 16, 1885. Serial No. 159,062.

To all whom it may concern.-

Be itknown that I, J mans J. LAwLnn, a citizen of the United States of America, residing at Scranton, in the county of Lackawanna and State of Pennsylvania, have invented certain new and useful Improvements in PlumbBobs for Gas-Fittings, of which the following is a specification, reference being had therein to the accompanying drawing.

The object of my invention is to introduce to public use a suitable plumbing device to enable plumbers or gas-fitters to suspend an ordinary gaspipe drop or chandelier depending from the ceiling of a room in a per fectly vertical position; and it consists in a metallic frame having in connection therewith two or more diiferent-sized tubes having female screw-threads therein adapted for reception ofscrew-threaded gas-pipes ofcorresponding size, and a plu1nb-bob suspended in the frame centrally by a cord secured in the tube at the top of the frame, substantally as hereinafter more fully set forth and claimed.

In the accompanying drawing the figure is a vertical sectional view of my invention.

In the embodiment of my invention I co11- struct the metallic frame A with parallel side bars a, which bars are curved and widened at a near their lower portion to correspond to the shape of the plumbbob. At the lower portion of the frame A there is provided a vertical and pointed projection, b, which is designed to register with the point of the plumb-bob D.

The tubular chamber 0, which is integral with the frame A, consists of two or more threaded tubes of dissimilar diameter, which are designed and constructed to enable the device to be secured to gaspipes without regard to the size thereof.

D represents an ordinary plumbbob, provided with a small cap, (1, having apertures for reception of the suspendingcord ID, which is secured to cap cl. The other end of said cord is passed through asmall aperture opening into chamber 0, and is secured therein by ordinary means.

In arranging gas-fixtures in newly-constructed and other buildings the work of hanging chandeliers and other pendent burner jection Z) of the bars a.

(No model.)

gas-fixtures in a precisely vertical or perpendicular line has hitherto been accomplished only with the greatest difficulty, and even then but seldom, owing to the absence of means of ascertaining when the pendant is in a precisely vertical position. In overcoming this diliiculty I provide the tubular chamber G with female screwthreads of different sizes to fit correspondingly-sized screwthreads of gas-pipes. by applying by screwing my invention to the screw-threaded end of a gas pipe the plumb-bob D will naturally hang by means of its cord E in a perfectly vertical position, and if the pipe to which it is attached should then be otherwise than in a straight position the same will be immediately indicated and the evil remedied. WVhen the pipe is properly plumbed, the plumb-bob D will hang directly over the pro- The extreme upper end of the frame A has a polygonal periphery, F, to permit of the use ofa wrench in securing the plumb-bob to the end of the gaspipe to which the chandelier is to be attached.

It the gaspipe to be plumbed has a thread incorrectly cut, as often happens, on the erid to which the chandelier is to be attached, by use of my invention the same may be immediately detected and remedied.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A plumbing device for gas-fitters, consisting of a frame, A, having a projection, 12,

and a tubular chamber, 0, having differentsized screw-threads, and the plumb-bob D, and cord E, substantially as shown and de scribed.

2. A plumbing device for gas-fitters, having atubular chamber provided with differentsized screw-threads having a cord, E, secured therein, plumb-bob D, and frame A, having a projection, b, substantially as shown, and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES J. LAVLER. \Vitnesses:

T. WArrsoN, .Jas. H. ToRRnY. 

